Point Forecast Matrices
Issued by NWS Charleston, SC

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Point Forecast Matrices
National Weather Service Charleston SC
536 AM EDT Mon Sep 14 2026

SCZ150-142000-
Charleston International Airport-Charleston SC
32.91N  80.03W Elev. 45 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      95          75          87          67          85
Temp             76 88 93 93 83 80 78 77 76 84 87 81 76 73 71 68 68 79 85 79 75
Dewpt            74 73 69 70 73 74 74 74 71 70 67 64 64 64 64 64 64 64 63 63 65
RH               94 61 46 47 72 82 88 90 85 63 52 56 66 73 79 87 87 60 48 58 71
Wind dir          W  N  N SE  S  N NE NE NE NE  E  E  E  E NE NE NE NE NE  E  E
Wind spd          4  5  5  5  5  0  6 10 11 13 14 14 10  8  8  9 10 12 12 16 10
Clouds           FW CL FW FW FW FW SC FW SC SC SC SC SC FW FW CL FW FW FW FW FW
PoP 12hr                     10           0           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Heat index          96 98 99                   90
Max heat               98   102                91


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          67    87      70    89      72    90      73    90
Temp          70 68 85 79   73 72 87 81   75 73 87 81   76 75 87 81
Dewpt         65 65 66 68   70 70 70 71   73 72 72 73   73 74 73 73
PWind dir        NE    NE      NE     E       E     E       S     E
Wind char        GN    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW FW   FW FW FW SC   SC FW FW SC   SC FW SC SC
PoP 12hr          0     0       5    20       5    20       5    30
Rain shwrs                            S          S  S             C
Tstms                                 S             S             C

$$
GAZ218-142000-
Savannah International Airport-Inland Chatham GA
32.12N  81.20W Elev. 50 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      96          75          88          68          86
Temp             76 88 94 94 84 80 77 76 76 84 88 84 77 75 71 70 69 80 86 83 76
Dewpt            73 74 71 71 73 75 74 74 74 74 73 70 67 66 65 65 64 66 65 65 67
RH               90 63 47 47 70 85 90 94 94 72 61 63 71 74 81 84 84 62 50 55 74
Wind dir          W  N  N  E SE SE  N NE NE  E  E  E  E  E NE NE NE NE NE  E  E
Wind spd          2  3  3  5  4  1  0  3  8 12 14 16 10  8  5  6 10 11 11 12  9
Wind gust                                         26
Clouds           FW FW FW SC FW FW FW FW SC SC SC FW SC FW CL FW FW FW FW FW FW
PoP 12hr                     10           0          30           0           0
QPF 12hr                      0           0        0.11           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                   S  S
Tstms                                        S  S
Heat index          97101101 90             91 96
Max heat              101   103                97    94


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          68    86      71    88      72    89      74    89
Temp          70 69 85 79   73 72 86 80   74 73 87 81   76 75 87 81
Dewpt         66 65 69 70   70 70 73 73   73 72 74 74   74 73 75 74
PWind dir        NE    NE      NE     E       E     E       S     E
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW FW FW FW   FW FW FW SC   SC FW SC SC   SC FW SC SC
PoP 12hr          0     5      10    20       5    30      10    30
Rain shwrs                         S  S          S  C          C  C
Tstms                              S  S             C             C

$$
SCZ150-142000-
Charleston Waterfront-Charleston SC
32.78N  79.94W Elev. 10 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      94          77          85          71          84
Temp             77 88 92 92 84 81 79 78 78 83 85 80 78 76 75 72 72 80 84 80 77
Dewpt            76 77 76 75 77 77 77 75 73 74 72 68 67 67 66 66 66 69 69 68 68
RH               97 70 60 58 80 88 94 91 85 74 65 67 69 74 74 81 81 69 61 67 74
Wind dir          W NW NE SE  S  S NE NE NE NE  E  E  E  E NE NE NE NE NE  E  E
Wind spd          3  4  4  5  3  1  4 10 11 16 18 17 11  9  8  8  9 12 16 17 10
Clouds           FW CL FW FW FW FW SC SC SC SC SC SC SC FW FW FW FW FW FW FW FW
PoP 12hr                     10           5          10           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Heat index         100103103 93                91
Max heat              103   105    92          91


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          70    85      73    87      74    88      75    88
Temp          73 71 84 80   76 74 86 81   77 75 86 82   77 76 87 82
Dewpt         67 67 72 72   72 72 75 75   75 74 77 76   76 75 77 76
PWind dir        NE    NE      NE     E       E     E       S     E
Wind char        LT    GN      LT    GN      LT    LT      LT    LT
Avg clouds    FW FW FW FW   FW FW FW SC   FW FW FW SC   SC FW FW SC
PoP 12hr          0     5      10    20       5    20      10    20
Rain shwrs                         S  S          S  S          S  S
Tstms                              S  S             S             S

$$
SCZ148-142000-
Beaufort Marine Corps Air Station-Beaufort SC
32.48N  80.72W Elev. 37 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      95          76          87          70          85
Temp             77 87 93 93 84 80 78 77 77 83 87 85 78 74 72 71 71 79 85 83 76
Dewpt            74 75 72 72 75 75 76 75 74 74 73 69 67 66 66 65 65 67 67 66 67
RH               90 68 51 51 74 85 94 94 90 74 63 59 69 76 81 81 81 67 55 57 74
Wind dir          W  N NE SE SE  N  N  E NE  E  E  E  E  E NE NE NE NE NE  E  E
Wind spd          2  3  2  4  3  0  0  6 11 13 13 13  9  6  5  8 10 12 10 11  9
Wind gust                                      25 25 20 17             20 21 20
Clouds           FW CL SC FW FW FW CL FW SC SC SC FW SC FW CL CL FW FW FW FW FW
PoP 12hr                     10           0          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                   S
Tstms                                        S
Heat index          96101101 92             90 94
Max heat              101   104                94    92


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          69    86      71    87      73    88      74    88
Temp          71 70 84 79   73 73 85 80   75 74 86 81   76 75 86 82
Dewpt         66 66 70 71   70 71 74 74   74 73 75 75   74 74 76 75
PWind dir        NE    NE      NE     E       E     E       S     E
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW CL FW FW   FW FW FW SC   SC FW FW SC   FW FW FW SC
PoP 12hr          0     5      10    20       5    20      10    20
Rain shwrs                         S  S          S  S          S  S
Tstms                              S  S             S             S

$$
SCZ043-142000-
Walterboro-Inland Colleton SC
32.91N  80.67W Elev. 98 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      94          73          88          65          86
Temp             73 87 92 94 83 77 75 74 74 83 88 85 76 71 67 66 66 81 86 84 75
Dewpt            71 71 68 68 69 71 71 72 70 68 67 64 62 62 62 62 62 61 60 59 61
RH               93 59 46 43 63 82 87 93 87 61 50 50 62 73 84 87 87 51 42 43 62
Wind dir          N  N NE NE SE  N  N NE NE NE  E  E  E  E NE NE NE NE NE NE  E
Wind spd          0  4  5  5  3  0  0  6  9 10 11 10  6  4  4  5  8 10 10  9  6
Clouds           FW CL FW FW FW FW FW FW B1 SC SC FW SC FW CL FW FW FW FW FW FW
PoP 12hr                      0           0           5           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Heat index          93 96 99                   91
Max heat               96    99                91


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          64    87      67    89      70    90      71    90
Temp          66 66 85 78   69 69 87 79   71 71 88 80   73 73 87 80
Dewpt         63 63 64 65   67 68 69 70   70 71 71 71   72 72 72 72
PWind dir        NE    NE      NE     E      SE    SE      SE     S
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW CL FW FW   FW CL FW SC   SC FW SC SC   SC FW SC SC
PoP 12hr          0     0       0    20       0    20       5    30
Rain shwrs                            S             S             C
Tstms                                 S             S             C

$$
GAZ099-142000-
Metter-Candler GA
32.40N  82.06W Elev. 197 ft
536 AM EDT Mon Sep 14 2026

Date             Mon 09/14/26            Tue 09/15/26            Wed 09/16/26
EDT 3hrly     05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20
UTC 3hrly     09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00

Max/Min                      94          73          90          66          89
Temp             74 86 92 93 84 78 76 74 75 85 90 87 79 74 71 67 67 81 89 86 76
Dewpt            72 73 70 68 71 73 72 72 72 74 72 70 70 67 65 63 63 63 62 61 63
RH               93 65 49 44 65 85 87 93 90 70 56 57 74 79 81 87 87 54 41 43 64
Wind dir          W  N  N NE  E SE SE NE NE  E  E  E  E  E  E NE NE NE NE NE  E
Wind spd          2  3  5  4  2  2  1  2  5 10 11 10  6  4  3  4  6 10 11 10  4
Clouds           FW CL FW FW SC CL FW FW SC FW B1 B1 SC CL CL FW FW FW FW FW FW
PoP 12hr                      0           0          20           0           0
QPF 12hr                      0           0           0           0           0
Snow 12hr                 00-00       00-00       00-00
Rain shwrs                                      S
Tstms                                           S
Heat index          93 98 97                93 97 92
Max heat               98    99                97    96


Date          Thu 09/17/26  Fri 09/18/26  Sat 09/19/26  Sun 09/20/26
EDT 6hrly     02 08 14 20   02 08 14 20   02 08 14 20   02 08 14 20
UTC 6hrly     06 12 18 00   06 12 18 00   06 12 18 00   06 12 18 00

Min/Max          64    89      68    90      70    90      71    91
Temp          67 65 87 79   70 69 88 80   72 72 88 80   73 73 88 81
Dewpt         65 64 65 67   69 68 70 72   72 72 73 73   73 73 73 74
PWind dir        NE    NE       E     E      SE     E       S     S
Wind char        LT    GN      LT    LT      LT    LT      LT    LT
Avg clouds    FW CL FW FW   FW CL FW FW   SC FW SC SC   SC FW SC SC
PoP 12hr          0     0       0    10       0    20       5    30
Rain shwrs                                          S             C
Tstms                                               S             C

$$

PRODUCT KEY...

--- Cloud Cover ---
CODE   PERCENTAGE            SKY COVER DAY/NIGHT
 CL    0 TO <=5 percent      Sunny/Clear
 FW    >5 TO <=25 percent    Sunny/Mostly Clear
 SC    >25 TO <=50 percent   Partly Cloudy
 B1    >50 TO <=69 percent   Mostly Cloudy
 B2    >69 TO <=87 percent   Mostly Cloudy
 OV    >87 TO 100 percent    Cloudy

--- Obstructions to Visibility ---    --- Weather Coverage ---
CODE   TYPE                           CODE   QUALIFYING TERM
 F     Fog                             S     Slight
 PF    Patchy Fog                      C     Chance
 F+    Dense Fog                       L     Likely
 PF+   Patchy Dense Fog                O     Occasional
 H     Haze                            D     Definite
 BS    Blowing Snow
 K     Smoke
 BD    Blowing Dust
 AF    Volcanic Ashfall

--- Extended Wind Forecast Character ---
                           12-HR MAX SUSTAINED
CODE   WIND CHARACTER          WIND SPEED
 LT    Light                   < 8 mph
 GN    Gentle                  8-14 mph
 BZ    Breezy                  15-22 mph
 WY    Windy                   23-30 mph
 VW    Very Windy              31-39 mph
 SD    Strong/Damaging         >=40 mph